Tumor tissue samples from paraffin-embedded tissue blocks are analyzed for TAB3 transcript and protein expression using in situ hybridization and immunostaining with TAB3 cRNA probe and antibody. Antibodies against the proteins involved in the NFkB signaling pathway (e.g., p65, TAK1, MyD88, and Akt) are used in the immunostaining assays.

Genetic: protein expression analysis

Tumor tissue samples from paraffin-embedded tissue blocks are analyzed for TAB3 transcript and protein expression using in situ hybridization and immunostaining with TAB3 cRNA probe and antibody. Antibodies against the proteins involved in the NFkB signaling pathway (e.g., p65, TAK1, MyD88, and Akt) are used in the immunostaining assays.

Other: immunologic technique

Tumor tissue samples from paraffin-embedded tissue blocks are analyzed for TAB3 transcript and protein expression using in situ hybridization and immunostaining with TAB3 cRNA probe and antibody. Antibodies against the proteins involved in the NFkB signaling pathway (e.g., p65, TAK1, MyD88, and Akt) are used in the immunostaining assays.

Detailed Description:

OBJECTIVES:

To identify TAB3 transcript/protein as a molecular marker of cancer, specifically testicular, skin, small intestine, and pancreatic cancer.

To characterize TAB3 and its signaling networks that are involved in tumorigenesis.

OUTLINE: Tumor tissue samples from paraffin-embedded tissue blocks are analyzed for TAB3 transcript and protein expression using in situ hybridization and immunostaining with TAB3 cRNA probe and antibody. Antibodies against the proteins involved in the NFkB signaling pathway (e.g., p65, TAK1, MyD88, and Akt) are used in the immunostaining assays.

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Please refer to this study by its ClinicalTrials.gov identifier: NCT00899132